From 551e2c3cf7733ac141768fc6cbdb05d6633d08a6 Mon Sep 17 00:00:00 2001 From: Ian Abbott Date: Fri, 14 Sep 2012 17:34:34 +0100 Subject: [PATCH] staging: comedi: mite: remove list of devices All the drivers that use the "mite" module now allocate a `struct mite_struct` dynamically instead of searching the `mite_devices` list populated during initialization of the "mite" module. Remove the list of devices and the function that prints available NI devices on the list (`mite_list_devices()`). The list node and `used` members in `struct mite_struct` are now redundant, so remove them. Signed-off-by: Ian Abbott Reviewed-by: H Hartley Sweeten Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers/mite.c | 56 --------------------------- drivers/staging/comedi/drivers/mite.h | 7 ---- 2 files changed, 63 deletions(-) diff --git a/drivers/staging/comedi/drivers/mite.c b/drivers/staging/comedi/drivers/mite.c index 7355455f0abe..873c2b722596 100644 --- a/drivers/staging/comedi/drivers/mite.c +++ b/drivers/staging/comedi/drivers/mite.c @@ -61,9 +61,6 @@ #define PCI_DAQ_SIZE 4096 #define PCI_DAQ_SIZE_660X 8192 -struct mite_struct *mite_devices; -EXPORT_SYMBOL(mite_devices); - #define TOP_OF_PAGE(x) ((x)|(~(PAGE_MASK))) struct mite_struct *mite_alloc(struct pci_dev *pcidev) @@ -85,26 +82,6 @@ struct mite_struct *mite_alloc(struct pci_dev *pcidev) } EXPORT_SYMBOL(mite_alloc); -static void mite_init(void) -{ - struct pci_dev *pcidev = NULL; - struct mite_struct *mite; - - for_each_pci_dev(pcidev) { - if (pcidev->vendor == PCI_VENDOR_ID_NI) { - mite = mite_alloc(pcidev); - if (!mite) { - pr_err("allocation failed\n"); - pci_dev_put(pcidev); - return; - } - pci_dev_get(pcidev); - mite->next = mite_devices; - mite_devices = mite; - } - } -} - static void dump_chip_signature(u32 csigr_bits) { pr_info("version = %i, type = %i, mite mode = %i, interface mode = %i\n", @@ -205,8 +182,6 @@ int mite_setup2(struct mite_struct *mite, unsigned use_iodwbsr_1) } mite->fifo_size = mite_fifo_size(mite, 0); dev_info(&mite->pcidev->dev, "fifo size is %i.\n", mite->fifo_size); - mite->used = 1; - return 0; } EXPORT_SYMBOL(mite_setup2); @@ -217,17 +192,6 @@ int mite_setup(struct mite_struct *mite) } EXPORT_SYMBOL(mite_setup); -static void mite_cleanup(void) -{ - struct mite_struct *mite, *next; - - for (mite = mite_devices; mite; mite = next) { - pci_dev_put(mite->pcidev); - next = mite->next; - mite_free(mite); - } -} - void mite_unsetup(struct mite_struct *mite) { /* unsigned long offset, start, length; */ @@ -247,25 +211,9 @@ void mite_unsetup(struct mite_struct *mite) comedi_pci_disable(mite->pcidev); mite->mite_phys_addr = 0; } - - mite->used = 0; } EXPORT_SYMBOL(mite_unsetup); -void mite_list_devices(void) -{ - struct mite_struct *mite, *next; - - pr_info("Available NI device IDs:\n"); - if (mite_devices) - for (mite = mite_devices; mite; mite = next) { - next = mite->next; - pr_info("0x%04x%s\n", mite_device_id(mite), - mite->used ? " (used)" : ""); - } -} -EXPORT_SYMBOL(mite_list_devices); - struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite_struct *mite) { struct mite_dma_descriptor_ring *ring = @@ -852,15 +800,11 @@ EXPORT_SYMBOL(mite_dump_regs); #ifdef MODULE int __init init_module(void) { - mite_init(); - mite_list_devices(); - return 0; } void __exit cleanup_module(void) { - mite_cleanup(); } #endif diff --git a/drivers/staging/comedi/drivers/mite.h b/drivers/staging/comedi/drivers/mite.h index 912bae171c92..255b8ba9c917 100644 --- a/drivers/staging/comedi/drivers/mite.h +++ b/drivers/staging/comedi/drivers/mite.h @@ -62,15 +62,11 @@ struct mite_channel { }; struct mite_struct { - struct mite_struct *next; - int used; - struct pci_dev *pcidev; resource_size_t mite_phys_addr; void __iomem *mite_io_addr; resource_size_t daq_phys_addr; void __iomem *daq_io_addr; - struct mite_channel channels[MAX_MITE_DMA_CHANNELS]; short channel_allocated[MAX_MITE_DMA_CHANNELS]; int num_channels; @@ -78,8 +74,6 @@ struct mite_struct { spinlock_t lock; }; -extern struct mite_struct *mite_devices; - struct mite_struct *mite_alloc(struct pci_dev *pcidev); static inline void mite_free(struct mite_struct *mite) @@ -100,7 +94,6 @@ static inline unsigned int mite_device_id(struct mite_struct *mite) int mite_setup(struct mite_struct *mite); int mite_setup2(struct mite_struct *mite, unsigned use_iodwbsr_1); void mite_unsetup(struct mite_struct *mite); -void mite_list_devices(void); struct mite_dma_descriptor_ring *mite_alloc_ring(struct mite_struct *mite); void mite_free_ring(struct mite_dma_descriptor_ring *ring); struct mite_channel *mite_request_channel_in_range(struct mite_struct *mite, -- 2.39.5